ˌ ̷ ̷ ̷ ̷ˈhaˌlīt, -ˈhā- noun
( -s )
Etymology: German polyhalit, from poly- + hal- + -it -ite
: a mineral K 2 MgCa 2 (SO 4 ) 4 .2H 2 O occurring usually in fibrous masses of a brick-red color due to iron but consisting essentially of hydrous sulfate of calcium, magnesium, and potassium